Algae Nutrient Uptake: Diffusion or Active Transport?

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Algae primarily take in nutrients through facilitated diffusion, which involves specific membrane proteins known as carrier proteins, transport proteins, or permeases. These proteins enable the transport of larger, polar molecules like sugars and amino acids across the cell membrane, allowing algae to absorb essential nutrients efficiently. This process is influenced by chemical or electrochemical gradients and can be regulated by growth factors and hormones that affect the opening and closing of the channels used for facilitated diffusion.
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Does anyone know how algae take in nutrients? Is it by diffusion or active transport?
 
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Sundog said:
Does anyone know how algae take in nutrients? Is it by diffusion or active transport?

Facilitated diffusion.

From: http://lifeofplant.blogspot.com/2011/03/osmosis-simple-diffusion-and.html

"All other materials that enter and leave cells down their chemical or electrochemical gradients do so by facilitated diffusion. Forming this pathway is the role of the particular membrane proteins, called carrier proteins, transport proteins, or permeases.

Such proteins allow larger, polar molecules such as sugars and amino acids to be taken up by cells. They control the response of cells to certain growth factors and hormones, whose binding to the cell membrane causes channels for facilitated diffusion to open or close selectively."
 
As child, before I got my first X-ray, I used to fantasize that I might have a mirror image anatomy - my heart on the right, my appendix on the right. Why not? (Caveat: I'm not talking about sci-fi molecular-level mirroring. We're not talking starvation because I couldn't process certain proteins, etc.) I'm simpy tlakng about, when a normal zygote divides, it technically has two options which way to form. Oen would expcet a 50:50 split. But we all have our heart on the left and our...

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